沥青混凝土心墙摊铺厚度及平整性实时控制研究

针对沥青混凝土心墙摊铺质量控制的要求，本文研制了基于GNSS和高精度超声波测距的摊铺厚度实时检测与定位装置，提出了摊铺厚度和平整度实时计算方法，开发了相应的实时监控系统，实现了心墙摊铺厚度和平整度的动态监测与精准定位，可沿心墙纵断面自动显示摊铺厚度和平整度；当摊铺质量不合格时发出报警，以提醒施工管理人员及时纠偏。实例应用表明，心墙摊铺厚度和平整度误差都很小，能满足工程要求的控制精度；开发的系统可实时远程同步监控心墙摊铺过程，从而能够为沥青混凝土心墙摊铺质量的精细管控提供有效的技术手段。

Real-time quality control on lift thickness and pavement roughness of asphalt concrete core walls

In response to the pavement quality control requirements of asphalt concrete core walls,this study develops a real-time lift thickness detection and positioning device based on GNSS technologies and high-accuracy ultrasonic distance measurements,and formulates a real-time calculation method of determining lift thickness and pavement roughness.For dynamic monitoring and accurate positioning of lift thickness and pavement roughness,we also develop a corresponding real-time monitoring system that can display automatically the thickness and roughness profiles at the longitudinal sections of the core wall and broadcast an alarm to remind the construction personnel in time when the pavement is unqualified.Application to a real project shows very small errors in both the thickness and roughness measured by the device,meeting the required control accuracy.The proposed system achieves a real-time,remote,and synchronous monitoring of construction process,thus proving effective in the lean management and quality control of asphalt concrete core wall pavement.